Exclusive actress "Nagatani Rui" seduces her sister's boyfriend. While being attacked by a mugger on a dark street at night, she falls in love with the man who saves her. Upon returning home, she finds her sister with that same man. Unable to give up, she starts using every trick in the book to seduce him. She barges into his workplace and makes a bold appeal with her body, finally capturing him. One day, their relationship escalates too far and gets discovered by her sister. To confirm the feelings of the indecisive man, a fierce tug-of-war ensues between the sisters…
